Month	Percent
1978-02-01	26.9465111648995
1978-03-01	29.0130570207036
1978-04-01	29.8373457593911
1978-05-01	30.4206720904756
1978-06-01	30.7339014118518
1978-07-01	30.9248929486174
1978-08-01	31.6129045312513
1978-09-01	31.6708842252199
1978-10-01	31.8917805003166
1978-11-01	32.3977603630366
1978-12-01	26.2489663434432
1979-01-01	27.3380092045364
1979-02-01	27.9004992842874
1979-03-01	28.9995514325975
1979-04-01	29.6029441583796
1979-05-01	29.9421152389046
1979-06-01	30.9215536449206
1979-07-01	30.9400065789995
1979-08-01	31.3418909274553
1979-09-01	29.9372151431794
1979-10-01	31.0991657746819
1979-11-01	30.8961606891591
1979-12-01	25.3762607466376
1980-01-01	26.4657829293703
1980-02-01	26.8511792699084
1980-03-01	27.9013639969747
1980-04-01	28.6835910790619
1980-05-01	27.5791729259737
1980-06-01	28.3605474415845
1980-07-01	28.6133151983097
1980-08-01	29.2138215625785
1980-09-01	27.8282012824284
1980-10-01	29.2576372161741
1980-11-01	29.5409194850552
1980-12-01	23.6015938415447
1981-01-01	25.6424412089952
1981-02-01	26.0161222667198
1981-03-01	26.7771431417266
1981-04-01	27.6600170415363
1981-05-01	27.7709860081055
1981-06-01	28.8247802577145
1981-07-01	28.6424099561729
1981-08-01	29.7501150768824
1981-09-01	28.1008110671906
1981-10-01	29.8524813296850
1981-11-01	30.4492887629378
1981-12-01	24.5939295472083
1982-01-01	25.9275001413901
1982-02-01	25.9373048778128
1982-03-01	26.9893932688516
1982-04-01	28.4401693701700
1982-05-01	28.0697495587491
1982-06-01	29.5721828902975
1982-07-01	29.4474117088717
1982-08-01	30.3826824427775
1982-09-01	29.3275661935026
1982-10-01	29.5591105576652
1982-11-01	30.1998839964367
1982-12-01	25.0915506451638
1983-01-01	26.3502783525421
1983-02-01	26.9822111533216
1983-03-01	28.2069823304276
1983-04-01	29.0891357403195
1983-05-01	28.4526987802110
1983-06-01	29.9945106679124
1983-07-01	29.9138512853614
1983-08-01	30.8526246957283
1983-09-01	29.0051391299677
1983-10-01	30.2335649768207
1983-11-01	30.2171102073047
1983-12-01	25.2070532066144
1984-01-01	26.5951384698110
1984-02-01	27.4097865845233
1984-03-01	27.5648503933987
1984-04-01	28.2572932381858
1984-05-01	28.8450161985841
1984-06-01	29.8845915160525
1984-07-01	29.7471314202115
1984-08-01	30.8165366349444
1984-09-01	29.6546571312686
1984-10-01	31.2310988262659
1984-11-01	30.9570982538013
1984-12-01	26.7825535281294
1985-01-01	27.0372025631326
1985-02-01	27.2221787224945
1985-03-01	28.0710916247440
1985-04-01	29.3186456519999
1985-05-01	28.6589450275548
1985-06-01	29.4526791549993
1985-07-01	30.0922245376450
1985-08-01	30.6008946774003
1985-09-01	28.2928738578902
1985-10-01	30.6655739350940
1985-11-01	29.9419373866800
1985-12-01	26.0355120696778
1986-01-01	26.0973611126883
1986-02-01	26.4417154721717
1986-03-01	27.0331804796835
1986-04-01	26.8403248824215
1986-05-01	27.9494975099745
1986-06-01	29.0951891346991
1986-07-01	29.1236289081064
1986-08-01	30.4092037425020
1986-09-01	28.3652120832390
1986-10-01	29.6784366636164
1986-11-01	30.3912794197823
1986-12-01	24.4786213645052
1987-01-01	26.3854120892245
1987-02-01	26.7392280878972
1987-03-01	27.3811289564558
1987-04-01	28.2683918612751
1987-05-01	29.3270136263579
1987-06-01	29.9013485394384
1987-07-01	28.4153846964040
1987-08-01	31.3159938778079
1987-09-01	30.3173609558761
1987-10-01	30.3727329832110
1987-11-01	31.0428318849950
1987-12-01	24.9746708101185
1988-01-01	26.0956709644822
1988-02-01	27.8041803264266
1988-03-01	27.4202692834919
1988-04-01	27.9215319712291
1988-05-01	29.7057348563552
1988-06-01	30.2595693915740
1988-07-01	30.5453785276280
1988-08-01	30.8709578433039
1988-09-01	29.6069323197522
1988-10-01	30.6475033132754
1988-11-01	31.4805440436239
1988-12-01	25.1681404144933
1989-01-01	25.7459766594280
1989-02-01	26.1134391858766
1989-03-01	27.7884075199707
1989-04-01	28.1433930351167
1989-05-01	28.1575927784442
1989-06-01	29.1186364397885
1989-07-01	28.1434393428998
1989-08-01	29.5196885716534
1989-09-01	28.1418507087279
1989-10-01	28.7357389959053
1989-11-01	30.1627599364397
1989-12-01	25.0953892903101
1990-01-01	25.3827797745189
1990-02-01	26.7501100825502
1990-03-01	27.8487275576758
1990-04-01	27.8272516251828
1990-05-01	28.0602240967733
1990-06-01	29.3492833292356
1990-07-01	27.6626390974458
1990-08-01	29.6354738183616
1990-09-01	28.5314915145783
1990-10-01	29.4206006337500
1990-11-01	30.1030150297884
1990-12-01	24.1829393590266
1991-01-01	26.5891726064611
1991-02-01	28.3040448964565
1991-03-01	29.2326248191266
1991-04-01	28.7799882288466
1991-05-01	30.5551910433404
1991-06-01	32.5069389942723
1991-07-01	32.2033207027641
1991-08-01	32.6799387632410
1991-09-01	31.0255676843453
1991-10-01	32.4816316551245
1991-11-01	33.2198134140819
1991-12-01	26.5289764929069
1992-01-01	28.1933993362115
1992-02-01	29.1477514669032
1992-03-01	30.3857324945826
1992-04-01	30.9224373309773
1992-05-01	31.1309933083786
1992-06-01	31.9755242630409
1992-07-01	30.7105642727257
1992-08-01	32.1118901324169
1992-09-01	30.9016216417574
1992-10-01	31.6069624386628
1992-11-01	33.3992741785630
1992-12-01	26.8774303999175
1993-01-01	27.2207310304191
1993-02-01	29.2942433159490
1993-03-01	30.9634010944757
1993-04-01	32.3962299150213
1993-05-01	32.4730291933398
1993-06-01	32.8022209375789
1993-07-01	32.5568484843338
1993-08-01	33.6890520715318
1993-09-01	31.7439549317179
1993-10-01	32.4474271834599
1993-11-01	32.6681717120385
1993-12-01	27.0346094731403
1994-01-01	26.7524324517900
1994-02-01	28.0320554118381
1994-03-01	28.7789115008703
1994-04-01	30.0662717695000
1994-05-01	30.7677262297318
1994-06-01	31.0593812832432
1994-07-01	29.9131609731146
1994-08-01	31.7737244196423
1994-09-01	29.4594586100814
1994-10-01	30.4168852725763
1994-11-01	30.8337552545766
1994-12-01	25.2311221515966
1995-01-01	26.3631335226560
1995-02-01	26.4035335653349
1995-03-01	28.1446942238522
1995-04-01	28.3788183113622
1995-05-01	28.9625593852279
1995-06-01	29.3264733936204
1995-07-01	29.3743260080611
1995-08-01	30.3962211850984
1995-09-01	28.4098294226416
1995-10-01	29.6660401210250
1995-11-01	29.7089009263437
1995-12-01	25.1815998887947
1996-01-01	25.4099878881424
1996-02-01	27.1319513225454
1996-03-01	28.2697977376212
1996-04-01	28.0411242693150
1996-05-01	28.6596831726367
1996-06-01	29.8453457546982
1996-07-01	28.9068875950006
1996-08-01	29.9411940041592
1996-09-01	28.7339996600135
1996-10-01	29.2920263715367
1996-11-01	31.0074274606135
1996-12-01	24.8083077505015
1997-01-01	26.1611296526612
1997-02-01	27.8511640827244
1997-03-01	28.8112191390339
1997-04-01	29.6324846432901
1997-05-01	30.3668202877441
1997-06-01	31.4635505358829
1997-07-01	31.1036479030056
1997-08-01	33.3647841139126
1997-09-01	30.9348335764079
1997-10-01	31.1844699936946
1997-11-01	31.5749309248976
1997-12-01	26.8731821284832
1998-01-01	27.2062995402499
1998-02-01	28.8824150672726
1998-03-01	29.9290853841937
1998-04-01	30.4820923889263
1998-05-01	31.0859481086851
1998-06-01	31.2567158143199
1998-07-01	31.2453387689704
1998-08-01	32.6047811027722
1998-09-01	29.6307859956049
1998-10-01	30.8640143554890
1998-11-01	31.4456277629744
1998-12-01	26.9372716858312
1999-01-01	28.1937625149471
1999-02-01	28.7511132780517
1999-03-01	29.5049325714170
1999-04-01	29.8047641324687
1999-05-01	30.9845491942897
1999-06-01	31.6348916198600
1999-07-01	31.0863061263841
1999-08-01	32.4049020430030
1999-09-01	29.6894489240878
1999-10-01	30.8147166473870
1999-11-01	31.8911898243017
1999-12-01	26.1463462360025
2000-01-01	28.1230771756302
2000-02-01	28.5261648763330
2000-03-01	29.5195424619587
2000-04-01	29.5985079865556
2000-05-01	30.3420506689863
2000-06-01	31.2107323477500
2000-07-01	29.8084265091020
2000-08-01	31.9181306542695
2000-09-01	29.6652041675538
2000-10-01	31.0420532916511
2000-11-01	31.6135829672986
2000-12-01	26.4471026541567
2001-01-01	27.7014779418052
2001-02-01	28.2837505409009
2001-03-01	29.6634888733070
2001-04-01	29.5725642823356
2001-05-01	29.4510276395947
2001-06-01	30.0061892982670
2001-07-01	29.5249208613138
2001-08-01	31.2575230356419
2001-09-01	29.4802154455608
2001-10-01	30.1548204322236
2001-11-01	30.8283937324294
2001-12-01	26.0094254600703
2002-01-01	27.2086772469908
2002-02-01	28.0475506081996
2002-03-01	30.1583984493980
2002-04-01	30.8306524557636
2002-05-01	31.3363619736469
2002-06-01	31.4821284484505
2002-07-01	31.5814545743492
2002-08-01	31.9070554101496
2002-09-01	29.3952310315520
2002-10-01	30.7821587883404
2002-11-01	31.3883654627403
2002-12-01	26.1594927497132
2003-01-01	26.6349385299288
2003-02-01	27.8349732644846
2003-03-01	29.5997700897622
2003-04-01	30.2149111597534
2003-05-01	30.5593092458388
2003-06-01	31.6131220147424
2003-07-01	31.1560628344402
2003-08-01	32.3034332743420
2003-09-01	30.2280176261266
2003-10-01	30.3705846586389
2003-11-01	31.1197041435847
2003-12-01	25.6764935618469
2004-01-01	27.1430171079908
2004-02-01	28.0697393686157
2004-03-01	29.2994752614514
2004-04-01	29.3091695070576
2004-05-01	30.4474103792064
2004-06-01	31.2551593712770
2004-07-01	30.9468721314950
2004-08-01	33.1859606736102
2004-09-01	30.3005160779098
2004-10-01	31.0471887546839
2004-11-01	31.5879907693237
2004-12-01	25.7026558697860
2005-01-01	27.1214156921810
2005-02-01	27.8206847358230
2005-03-01	28.7397561530759
2005-04-01	28.7046246666044
2005-05-01	29.5096162315896
2005-06-01	30.0537861673711
2005-07-01	29.9533188968936
2005-08-01	31.2679909166772
2005-09-01	29.4192681878564
2005-10-01	30.5635649547044
2005-11-01	30.8100001358924
2005-12-01	26.2847183900591
2006-01-01	27.2526745844348
2006-02-01	27.7207577344940
2006-03-01	29.0004203886939
2006-04-01	29.3018030705895
2006-05-01	30.2634074948461
2006-06-01	29.9386788899750
2006-07-01	29.8459212991659
2006-08-01	31.0728004018397
2006-09-01	29.0095728489109
2006-10-01	30.2797044549619
2006-11-01	31.0643498053663
2006-12-01	25.6189374605078
2007-01-01	27.3184478130224
2007-02-01	27.8998372461100
2007-03-01	29.1508434560458
2007-04-01	28.9661377490646
2007-05-01	29.5344512579162
2007-06-01	30.8977364214281
2007-07-01	30.3739679880905
2007-08-01	31.3712864889334
2007-09-01	29.8416627531841
2007-10-01	29.6800380192569
2007-11-01	30.5278609417011
2007-12-01	25.2966388916142
2008-01-01	26.0264723616063
2008-02-01	27.6738110098908
2008-03-01	28.6936054051686
2008-04-01	28.2525040558871
2008-05-01	29.4992400428872
2008-06-01	29.6597581475633
2008-07-01	29.6377931270631
2008-08-01	31.9584008660812
2008-09-01	29.9496607957288
2008-10-01	30.4313769877877
2008-11-01	32.1098102024356
2008-12-01	27.0532043803118
2009-01-01	28.8922185343416
2009-02-01	28.7287945210583
2009-03-01	29.1323072407259
2009-04-01	30.1733269033020
2009-05-01	31.3165333435314
2009-06-01	32.2240160297795
2009-07-01	32.3488600882796
2009-08-01	33.8043014775318
2009-09-01	31.7691625313827
2009-10-01	31.9456896851334
2009-11-01	32.5341944280743
2009-12-01	27.8755467217248
2010-01-01	29.2474211679089
2010-02-01	29.8591047317705
2010-03-01	30.5273669188310
2010-04-01	31.0128606436514
2010-05-01	32.3620277322181
2010-06-01	32.8057888109224
2010-07-01	32.3216230955812
2010-08-01	34.3527006456095
2010-09-01	32.6771820619687
2010-10-01	32.1275169225483
2010-11-01	33.2543943594676
2010-12-01	28.3430905207597
2011-01-01	29.2419456747838
2011-02-01	29.5260474917169
2011-03-01	31.1156089908375
2011-04-01	32.0210599700976
2011-05-01	32.2899205246769
2011-06-01	33.2377426315546
2011-07-01	32.9769745710719
2011-08-01	33.9114585564641
2011-09-01	31.6684144428799
2011-10-01	32.3769060940116
2011-11-01	33.9240178150582
2011-12-01	29.9807300375900
2012-01-01	30.2826923545236
2012-02-01	30.6325203867628
2012-03-01	31.7134758399430
2012-04-01	32.6630842941524
2012-05-01	31.8301802458036
2012-06-01	33.2180276102458
2012-07-01	33.6907256684968
2012-08-01	35.3205176631558
2012-09-01	32.9323109996464
2012-10-01	33.4814694744545
2012-11-01	34.4408004068823
2012-12-01	29.5311656773150
2013-01-01	30.4816297636900
2013-02-01	31.6215945572340
2013-03-01	32.5794270745239
2013-04-01	32.8000800224991
2013-05-01	33.2994788884930
2013-06-01	34.1948981550795
2013-07-01	33.4908841056225
2013-08-01	35.1419735921921
2013-09-01	33.6693368937503
2013-10-01	34.0097224118002
2013-11-01	35.1910053661469
2013-12-01	31.5869770220502
2014-01-01	31.8021219987354
2014-02-01	32.3820632074988
2014-03-01	32.9575930367930
2014-04-01	33.6319218633500
2014-05-01	34.0517738565832
2014-06-01	34.3828510064298
2014-07-01	33.9845950191199
2014-08-01	35.0469509625649
2014-09-01	34.7020167147338
2014-10-01	34.1434918606387
2014-11-01	33.7277249394401
2014-12-01	30.2484191427315
2015-01-01	31.2331639485214
2015-02-01	31.2109690616927
2015-03-01	32.1029194002113
2015-04-01	32.6846870179636
2015-05-01	33.0680495943708
2015-06-01	33.6442548654626
2015-07-01	32.6665873863904
2015-08-01	35.2189136979500
2015-09-01	34.1207364758044
2015-10-01	33.5246845644957
2015-11-01	33.4944938691767
2015-12-01	29.6186378905738
2016-01-01	31.3447302177100
2016-02-01	31.5455862495611
2016-03-01	32.6728725685154
2016-04-01	32.8557507126043
2016-05-01	32.9188146076480
2016-06-01	33.4019118523194
2016-07-01	33.2418628389094
2016-08-01	35.2293793685104
2016-09-01	34.6294061564422
2016-10-01	34.9905215004863
2016-11-01	34.8833667826355
2016-12-01	30.8235734810499
2017-01-01	31.6227358200592
2017-02-01	32.3627838728767
2017-03-01	32.6367759419201
2017-04-01	33.3440844194713
2017-05-01	33.9431282364007
2017-06-01	34.1840649249931
2017-07-01	33.4654499025464
2017-08-01	34.4934643549470
2017-09-01	33.3854774916113
2017-10-01	34.4899121944090
2017-11-01	33.7151830130346
2017-12-01	29.8540806642905
2018-01-01	30.5187274194801
2018-02-01	30.3554048073183
2018-03-01	31.6629134681207
2018-04-01	31.7697254772668
2018-05-01	32.3083863058891
2018-06-01	32.5439154285821
2018-07-01	33.0836754252334
2018-08-01	33.7988604425161
2018-09-01	33.5705069745690